Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: RSBGTXRRDS0

Remotes:

Switch Switch name Switch type
BYCYTXBYDS0  BAY CITY  EXM 
ELCMTXELDS0  El CAMPO  EXM 
MTGRTXMTRS1  MATAGORDA  5ER 
SMLKTXSMDS0  EL CAMPO  EXM 
VLLDTXVLDS0  VALLEY LODGE  EXM 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
281-232 A Richmond-Rosenberg TX 9533 SOUTHWESTERN BELL 560      
281-238 A Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-238 0 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-238 1 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-238 2 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-238 3 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-238 4 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-238 6 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-238 7 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-238 8 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-238 9 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-239 A Richmond-Rosenberg TX 9533 SOUTHWESTERN BELL 560      
281-341 A Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-342 A Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-344 A Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-344 0 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-344 1 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-344 3 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-344 4 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-344 5 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-344 6 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-344 7 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-344 8 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-344 9 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-396 0 Katy EMS TX 7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 560   2013-11-01   
281-633 A Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-633 0 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-633 1 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-633 2 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-633 3 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-633 4 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-633 5 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-633 7 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-633 8 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-633 9 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
281-665 5 Katy TX 7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 560   2013-10-31   
281-725 A Richmond-Rosenberg TX 9533 SOUTHWESTERN BELL 560      
281-725 5 Richmond-Rosenberg TX 9533 SOUTHWESTERN BELL 560   2006-04-06   
346-239 3 Richmond-Rosenberg TX 9533 SOUTHWESTERN BELL 560   2016-02-24   
346-843 6 Richmond-Rosenberg TX 9533 SOUTHWESTERN BELL 560   2017-02-14   
832-223 A Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
832-223 0 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
832-223 1 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
832-223 2 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
832-223 3 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
832-223 4 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
832-223 5 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
832-223 6 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
832-223 7 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
832-223 8 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
832-471 A Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
832-471 1 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560   2011-06-30   
832-471 2 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560   2011-06-30   
832-471 3 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560   2011-06-30   
832-471 4 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560   2011-06-30   
832-471 5 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560   2011-07-06   
832-595 A Richmond-Rosenberg TX 9533 SOUTHWESTERN BELL 560      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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